How to screen out respondents that have a BMI that does not qualify? | XM Community
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How to screen out respondents that have a BMI that does not qualify?

  • June 6, 2018
  • 3 replies
  • 174 views

Screener block has 3 questions. How tall are you in feet? (respondent selects from drop-down 4-7) Inches (respondent selects from drop down 0-11) How much do you weigh (text box) I have attached the questions, survey flow and data analysis formula. Any help would be greatly appreciated. Thank you.

Best answer by TomG

The formula in your survey flow is formatted incorrectly. It should be: ``` $e{ q://QID72/ChoiceTextEntryValue / ( ( ( q://QID2/ChoiceGroup/SelectedChoices * 12 ) + q://QID4/ChoiceGroup/SelectedChoices ) ^ 2 ) * 703 } ``` You don't really need the BMI > 25 branch in your survey flow. Everyone with BMI <= 25 will already be screened out.

3 replies

TomG
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  • Answer
  • June 6, 2018
The formula in your survey flow is formatted incorrectly. It should be: ``` $e{ q://QID72/ChoiceTextEntryValue / ( ( ( q://QID2/ChoiceGroup/SelectedChoices * 12 ) + q://QID4/ChoiceGroup/SelectedChoices ) ^ 2 ) * 703 } ``` You don't really need the BMI > 25 branch in your survey flow. Everyone with BMI <= 25 will already be screened out.

  • Author
  • June 6, 2018
@TomG Thank you!!! You made my day! It is difficult to know when to leave "{" out and when to include spaces.

  • October 18, 2018
Hi, I also want to screen out respondents that have a BMI of <= 25. Somehow it doesn't work, if I use the preview I always continue the survey whether my answers end up in BMI <= 25 or not. So none of the responses are screened out. The height and weight items are: Text entry single-line (content validation -number) I have attached the questions, survey flow and data analysis formula. I would be grateful for any help!